Form Validation with HTML 5

HTML5FormValidation.MD

<input type=[TYPE] pattern=[REGULAR_EXPRESSION] title=[HINT]>

Value(s) for REGULAR_EXPRESSION

^\d{4}-\d{3}-\d{4}$: For telephone numbers. (i.e. 0000-000-0000)

[a-zA-Z0-9]+: For alphanumeric values.

^@[A-Za-z0-9_]{1,15}$: For twitter usernames. (i.e. @tweet_handle, up to 15 characters)

Hints

title attribute: Can give hints to user on accepted input pattern